Check the listing for details. NOS Vintage Miami Carey TR75a UNI-MOUNT TRANSFORMER. Condition: Open box. Listed at 13.95 USD. It is our pleasure to offer for your consideration from our personal collection in our smoke-free home: NOS vintage Miami Carey TR75a Uni-Mount Doorbell Transformer with its original box. On the box it states: "10 watts for bells & chimes. Primary 115 volts A.C. 60 cycles. Secondary 16 volts A.C." This is NOS that has been opened but it has never been used or installed. The box has discoloration, rubbing, scuffs, bending, tears, and edgewear from shipping, handling, and storage. We will pack this very carefully and will ship quickly. Normal 0 false false false EN-US X-NONE X-NONE Please contact us, before purchasing, if you have any questions or any concerns that would be important for you in considering the purchase of this item, or if you need additional pictures in order to be able to make an informed decision to purchase and to make sure this item meets your needs before purchasing. Thank you for looking!